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Olythekid

Two quick questions

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Is this net mandatory? I have the one for the driver window, but this one is between the driver and passenger seat.

 

Does someone have a picture of the catch can for refueling the rules are talking about? I don't quite understand what I have to build.

net.jpg

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^^^ That's a catch Pan. I don't have the rules in front of me, but there is talk of having a catch "C"an I believe too. 

 

This is generally what it's talking about. Look at the hose he attaches to the overflow/vent line:

 

 

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1 hour ago, thewheelerZ said:

^^^ That's a catch Pan. I don't have the rules in front of me, but there is talk of having a catch "C"an I believe too. 

 

This is generally what it's talking about. Look at the hose he attaches to the overflow/vent line:

 

 

A pan on the ground is required for all teams refueling. 

 

An attachable ‘can’ outlined in the rules is required if you have an “overflow vent”. An overflow vent can be installed in addition to the standard vapor vent (a vapor vent would have a discriminator valve or some other way of preventing liquid fuel from escaping). The overflow vent would serve the purpose of overflowing fuel in a controlled way so it doesn’t come out your filler neck when the tank gets topped off. The overflow vent would have a mechanical valve which is opened before fueling and closed once the tank is full.

 

 

This was explained to me by Mike Chisek through email a month ago. 

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I found this new venting way for fuel cells is a lot of work unsafe and added cost and most of the time will not work right.  Now that we can not use clear filler hose most ever car used it to see when they filled the car to the top and and not let it splash back fuel on the pit crew and all over the car the person and hot ex and brakes.

In the Lemon rules they ask to run the vent  up higher then the filler then down below the fuel cell under the the filler . this way you use one catch tub for fuel spill ( they let you use clear reinforced approved filler hose $35 a ft ) The new champ way way I did for WG and by the look in tech line I was the only car doing it as asked.  

https://www.summitracing.com/parts/abt-re185 this valve starts at $150 and can go up to $250 

It is used to let air out of the vent when fueling and close when fuel lifts the ball and stops the vent but it makes the filler hose back up with fuel and slashes the crew. to do it right you must use a dry break https://www.summitracing.com/parts/abt-re105  $450 X 2 . I think you need to  lay it out how it really works and those that got it working right  would be of a great help.  

 

Edited by DRVOLKS

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Center net is not mandatory but should be as it will help save your life, especially with the type of seat you are using.   Lots of catch cans are available from second hand nascar parts suppliers.  It is a simple can with a probe to open the vent and when you see fuel you stop filling.  The small excess is caught in the can and when the probe pulls out the vent closes.  In theory it works great and is safe but it isn't always that simple.  Dry break and discriminator valve is the best but dry beak is not legal 

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On 6/15/2019 at 8:15 AM, DRVOLKS said:

  Now that we can not use clear filler hose 

 

 

Did i miss something that says you cant use the clear reinforced filler hose?

 

If so this is news to me

 

We always opened the trunk and watched, i didnt see where it said no clear filler hose. @National Tech?

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38 minutes ago, Gkuhn41 said:

 

Did i miss something that says you cant use the clear reinforced filler hose?

 

If so this is news to me

 

We always opened the trunk and watched, i didnt see where it said no clear filler hose. @National Tech?

 

He's referring to the bulkhead rules. If it's all in the trunk and blocked off from the driver, you're good.

 

Many teams were mounting their filler on the B or C Pillar and had clear line run from there down to the fuel cell positioned in a way that it (and therefore level) could be seen without opening anything. Until this year there wasn't a rule against that, and to my knowledge no issues arose from it, but we now require all soft lines (including braided stainless) to be enclosed/firewalled from the driver compartment.

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On 6/17/2019 at 11:04 AM, Gkuhn41 said:

 

Did i miss something that says you cant use the clear reinforced filler hose?

 

If so this is news to me

 

We always opened the trunk and watched, i didnt see where it said no clear filler hose. @National Tech?

All fluid lines in the cockpit must be covered.  If you need more info text me

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On 6/17/2019 at 11:47 AM, Wittenauer Racing said:

 

He's referring to the bulkhead rules. If it's all in the trunk and blocked off from the driver, you're good.

 

Many teams were mounting their filler on the B or C Pillar and had clear line run from there down to the fuel cell positioned in a way that it (and therefore level) could be seen without opening anything. Until this year there wasn't a rule against that, and to my knowledge no issues arose from it, but we now require all soft lines (including braided stainless) to be enclosed/firewalled from the driver compartment.

The Mazda that caught fire and burn the driver was an issue with clear hose.

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3 hours ago, National Tech said:

The Mazda that caught fire and burn the driver was an issue with clear hose.

 

What Mazda?  What race?  Cause and time of fire?

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14 hours ago, National Tech said:

The Mazda that caught fire and burn the driver was an issue with clear hose.

Could you be more clear on the root caught of the fire in the video? in the video you can see a major leak of fuel from the bottom of the car just before the turn. We where told it had been in the pit a few times for the ex system coming loose or coming off. The car still had a stock tank was the tank intact after the fire?   

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On 6/22/2019 at 5:14 PM, National Tech said:

The Mazda that caught fire and burn the driver was an issue with clear hose.

 

Thank you for bringing it to our attention, I hope he has made a full and speedy recovery.

 

Not sure how we missed seeing/hearing about this previously, but glad we know now. Was there ever a follow up with more info about what happened?

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On 6/22/2019 at 5:14 PM, National Tech said:

The Mazda that caught fire and burn the driver was an issue with clear hose.

 

On 6/24/2019 at 10:44 AM, Wittenauer Racing said:

 

Thank you for bringing it to our attention, I hope he has made a full and speedy recovery.

 

Not sure how we missed seeing/hearing about this previously, but glad we know now. Was there ever a follow up with more info about what happened?

 

That Mazda was us....sorry just saw this post. 

 

Just to be clear, we did not have a clear hose.  I'm not sure where that came from, but it is false.  Our filler hose was the stock hose to the stock tank.  Hose and tank were completely unmodified.  It is true that the hose failed though, a catastrophic failure you could say....but it was all OEM equipment.

 

@Wittenauer Racing and @DRVOLKS we did have an issue with the exhaust.  The exhaust came loose during the race and we removed everything back of the turbo down pipe.  Our theory is that the exhaust under the car heated/pressurized the tank and that pressure caused the hose to fail.  In hindsight, we should have had a better firewall between the trunk (where the hose was) and the drivers compartment.  Glad that is now a rule and hope it prevents something like this from happening again.

 

If you, or anyone, have questions or want to talk about it feel free to reach out to me.  Happy to do what I can to help make anyone safer.

 

As for my brother, his recovery has gone well.  Thank you for for the well wishes.  He had several surgeries last fall/winter but he's getting back to normal, or as normal as possible.  He's been back working full time for the past few months.  He's not sky diving again yet, but he's been back to the wind tunnel to build strength.  And what I think is the coolest part, he's scheduled to get back in a race car this weekend running my dads vintage 55 Chevy Sportsman at Dominion Raceway.  We're pretty excited for that.  I'm also planning to build a new car this winter for us to make a triumphant return to Thompson next fall.  So if anyone has a line on a cheap, rust free NA Miata, send them my way!

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Glad to hear the recovery has gone or is going well!

 

Thanks for posting the update and tell him good luck getting back into the saddle.

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Thank you for the update  I to have boxed in the fuel cell and all lines run in metal covers or are top grade steel braided in fuel box . 

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